Find an expression equivalent to the one given.- 
A. 
B. 
C. 
D. 
Answer: D
Mathematics
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Use the appropriate sum or difference identity to write the given expression as a function of x alone.sin 
A. sin x B. -cos x C. -sin x D. cos x
Mathematics
Solve by using the square root property.(x - 5)2 = 16
A. x = 1, x = -9 B. x = 21 C. x = 9, x = 1 D. x = 4, x = -4
Mathematics
Let a and b represent the lengths of the legs of a right triangle and let c represent the length of the hypotenuse. Values for two of the three lengths are given. Find the third length.a = 
and c = 11
A. 107
B. 
C. 
D. 
Mathematics
Solve the problem.The three points (x1, y1), (x2, y2), and (x3, y3) are collinear if 
= 0. Are the points 
, 
, and 
collinear?
A. No B. Yes
Mathematics